3G移动通信技术简介

中国联通数据类资费
China Unicom data class rates
中国联通语音类资费
Voice-class rates China Unicom
I understand 3G (我自己理解的3G)
1 可以视频通话 2 全国无漫游，接听免费，不区 分长途和市话 3 上网速度很快，联通无线网卡 的上行速率是7.4M（1M=1024K） 4 可以将语音和数据同步进行。 1 can video call 2 country without roaming, free incoming calls, does not differentiate between long distance and local calls 3 online fast, Unicom wireless card in the uplink is 7.4M (1M = 1024K) 4 can be voice and data simultaneously.
中国3G的发展情况 中国3G的发展情况 The development of 3G in China
根据电信业重组方案，3G牌照的源自文库放方式是：中 根据电信业重组方案，3G牌照的发放方式是：中 国移动获得TD－SCDMA牌照，（国产品牌）中国 国移动获得TD－SCDMA牌照，（国产品牌）中国 电信获得CDMA2000牌照（不支持视频通话）， 电信获得CDMA2000牌照（不支持视频通话）， 中国联通获得WCDMA牌照（网速最快，使用人数 中国联通获得WCDMA牌照（网速最快，使用人数 最多） According to telecom industry restructuring, 3G license issuance way: China Mobile TD-SCDMA TDlicense to obtain, (domestic brands) to obtain China Telecom CDMA2000 license (does not support video calls), China Unicom WCDMA license (the fastest speed, with the number of up
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3G移动通信技术简介
Introduction to 3G mobile communications technology
商务外语系 应用英语1班 毛星凯
Department of Foreign Languages English for Business Class 1 kay
什么是3G?
What is 3G?
3G与2G的主要区别 The main difference between 3G and 2G
• 3G与2G的主要区别是在传输声音和数据的速度上的 提升，它能够在全球范围内更好地实现无线漫游，并 处理图像、音乐、视频流等多种媒体形式，提供包括 网页浏览、电话会议、电子商务等多种信息服务，同 时也要考虑与已有第二代系统的良好兼容性。 • The main difference between 3G and 2G voice and data in the transmission speed of the upgrade, it can be better in the global wireless roaming, and process images, music, video streaming and other media in the form of services including web browsing, conference calls, ecommerce and other information services, taking into account also the secondgeneration system with the existing good compatibility.
世界3G发展状况 Development of the world's 3G
2000年5月，国际电信联盟正式公布第三代移动通信标准，我国提交的 TD-SCDMA正式成为国际标准，与欧洲WCDMA、美国CDMA2000成为 3G时代最主流的三大技术之一。 中国联通与中国网通合并，中国网通的基础电信业务并入中国联通，中 国铁通并入中国移动，国内电信运营商由6家变为3家。 May 2000, the International Telecommunication Union officially announced the third generation mobile communication standard TDSCDMA in China officially submitted become the international standard, and the European WCDMA, CDMA2000 as 3G era the United States the most mainstream of the three technologies. China Unicom and China Netcom, China Netcom's basic telecom business into China Unicom, China Railcom, China Mobile, into the domestic telecom operators by a 6 to 3 home.
“3G”（英语 3rd-generation）是第三代 第三代 移动通信技术的简称是指支持高速数 移动通信技术 据传输的蜂窝移动通讯技术。3G服务 能够同时传送声音(通话)及数据信息. 3G "(English 3rd-generation) is the third generation mobile communication technology to support high-speed data referred to is the transfer of cellular mobile communications technology. 3G services can simultaneously transmit voice (call) and data information.
3G时代能干什么呢？ 3G时代能干什么呢？ 3G era can you do?
3G将会给生活带来全新享受 3G将会给生活带来全新享受 ●3G就是出租车里的视频会议； 3G就是出租车里的视频会议； ●3G就是你坐火车也不会错过的肥皂剧； 3G就是你坐火车也不会错过的肥皂剧； ●3G就是从现场发回总部供分析用的图像； 3G就是从现场发回总部供分析用的图像； ●3G就是与朋友共享你在摩洛哥的美妙假期。 。 3G就是与朋友共享你在摩洛哥的美妙假期。 3G will bring new enjoyment to life ● 3G video conference is a taxi; ● 3G is that you will not miss the train soap opera; ● 3G is sent back to headquarters from the field of image for analysis; ● 3G is with friends and share your wonderful holiday in Morocco. .
Q: What kind of 3G easy to use it? ?
A: China Unicom(中国联通)
主要业务经营范围包括：GSM移动通信 业务、WCDMA移动通信业务、固定电 话，宽带通信 Main business scope includes: GSM mobile communication services, WCDMA mobile communication services, fixed telephony, broadband communications